RT Journal Article SR Electronic(1) A1 Hoffmann, S YR 2001 T1 The laboratory surveillance system of Chlamydia trachomatis and Neisseria gonorrhoeae infections in Denmark JF Eurosurveillance VO 6 IS 5 SP 86SP 211 OP 90 DO https://doi.org/10.2807/esm.06.05.00211-en UL https://www.eurosurveillance.org/content/10.2807/esm.06.05.00211-en